Persitance classes conneted to mongodb

Persistance.java

@Data
@NoArgsConstructor
@Document(collection = "user")
public class User extends BaseEntity {

	@Field("email")
	@Indexed(unique = true)
	private String email;

	@Field("token")
	@Indexed(unique = true)
	private String token;

	@Field("roles")
	private HashSet<String> roles;
}

@Data
public class BaseEntity {

	@BsonId
	private ObjectId id;

	@Field("updated_at")
	@LastModifiedDate
	private Date updatedAt;
}